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libcdio
2.1.0
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Things related to CD-ROM layout: tracks, sector sizes, MSFs, LBAs. More...
#include <cdio/types.h>Go to the source code of this file.
Typedefs | |
| typedef enum cdio_subchannel | cdio_subchannel |
| typedef enum cdio_cd_minutes_sectors | cdio_cd_minutes_sectors |
Functions | |
| char * | cdio_lba_to_msf_str (lba_t i_lba) |
| char * | cdio_msf_to_str (const msf_t *p_msf) |
| lba_t | cdio_lba_to_lsn (lba_t i_lba) |
| void | cdio_lba_to_msf (lba_t i_lba, msf_t *p_msf) |
| lba_t | cdio_lsn_to_lba (lsn_t i_lsn) |
| void | cdio_lsn_to_msf (lsn_t i_lsn, msf_t *p_msf) |
| lba_t | cdio_msf_to_lba (const msf_t *p_msf) |
| lsn_t | cdio_msf_to_lsn (const msf_t *p_msf) |
| lba_t | cdio_msf3_to_lba (unsigned int minutes, unsigned int seconds, unsigned int frames) |
| lba_t | cdio_mmssff_to_lba (const char *psz_mmssff) |
Variables | |
| enum cdio_cd_enums | cdio_cd_enums |
| const uint8_t | CDIO_SECTOR_SYNC_HEADER [CDIO_CD_SYNC_SIZE] |
| enum m2_sector_enums | m2_sector_enums |
Things related to CD-ROM layout: tracks, sector sizes, MSFs, LBAs.
A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336, 2340, or 2352 bytes long.
Sector types of the standard CD-ROM data formats:
format sector type user data size (bytes)
-----------------------------------------------------------------------------
1 (Red Book) CD-DA 2352 (CDIO_CD_FRAMESIZE_RAW)
2 (Yellow Book) Mode1 Form1 2048 (CDIO_CD_FRAMESIZE)
3 (Yellow Book) Mode1 Form2 2336 (M2RAW_SECTOR_SIZE)
4 (Green Book) Mode2 Form1 2048 (CDIO_CD_FRAMESIZE)
5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes)
The layout of the standard CD-ROM data formats:
-----------------------------------------------------------------------------
- audio (red): | audio_sample_bytes |
| 2352 |
- data (yellow, mode1): | sync - head - data - EDC - zero - ECC |
| 12 - 4 - 2048 - 4 - 8 - 276 |
- data (yellow, mode2): | sync - head - data |
| 12 - 4 - 2336 |
- XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC |
| 12 - 4 - 8 - 2048 - 4 - 276 |
- XA data (green, mode2 form2): | sync - head - sub - data - Spare |
| 12 - 4 - 8 - 2324 - 4 |
| #define CD_FRAMESIZE_RAW CDIO_CD_FRAMESIZE_RAW |
For compatibility with good ol' paranoia
| #define CDIO_CD_CHUNK_SIZE 24 |
lowest-level "data bytes piece"
| #define CDIO_CD_ECC_SIZE 276 |
bytes ECC per most raw data frame types
| #define CDIO_CD_EDC_SIZE 4 |
bytes EDC per most raw data frame types
| #define CDIO_CD_FRAMES_PER_MIN (CDIO_CD_FRAMES_PER_SEC*CDIO_CD_SECS_PER_MIN) |
| #define CDIO_CD_FRAMES_PER_SEC 75 |
frames per second
| #define CDIO_CD_FRAMESIZE 2048 |
bytes per frame, "cooked" mode
| #define CDIO_CD_FRAMESIZE_RAW 2352 |
bytes per frame, "raw" mode
| #define CDIO_CD_FRAMESIZE_RAW0 (CDIO_CD_FRAMESIZE_RAW-CDIO_CD_SYNC_SIZE-CDIO_CD_HEADER_SIZE) /*2336*/ |
| #define CDIO_CD_FRAMESIZE_RAW1 (CDIO_CD_FRAMESIZE_RAW-CDIO_CD_SYNC_SIZE) /*2340*/ |
| #define CDIO_CD_FRAMESIZE_RAWER 2646 |
The maximum possible returned bytes
| #define CDIO_CD_FRAMESIZE_SUB 96 |
subchannel data "frame" size
| #define CDIO_CD_HEADER_SIZE 4 |
header (address) bytes per raw data frame
| #define CDIO_CD_M1F1_ZERO_SIZE 8 |
bytes zero per yellow book mode 1 frame
| #define CDIO_CD_MAX_LSN 450150 |
Largest LSN in a CD
| #define CDIO_CD_MAX_SESSIONS 99 |
Largest CD session number
| #define CDIO_CD_MIN_LSN -450150 |
Smallest LSN in a CD
| #define CDIO_CD_MIN_SESSION_NO 1 |
Smallest CD session number
| #define CDIO_CD_MINS 74 |
Some generally useful CD-ROM information – mostly based on the above. This is from linux.h - not to slight other OS's. This was the first place I came across such useful stuff.max. minutes per CD, not really a limit
| #define CDIO_CD_NUM_OF_CHUNKS 98 |
chunks per frame
| #define CDIO_CD_SECS_PER_MIN 60 |
seconds per minute
| #define CDIO_CD_SUBHEADER_SIZE 8 |
subheader bytes per raw XA data frame
| #define CDIO_CD_SYNC_SIZE 12 |
12 sync bytes per raw data frame
| #define CDIO_CD_XA_HEADER (CDIO_CD_HEADER_SIZE+CDIO_CD_SUBHEADER_SIZE) |
"before data" part of raw XA (green, mode2) frame
| #define CDIO_CD_XA_SYNC_HEADER (CDIO_CD_SYNC_SIZE+CDIO_CD_XA_HEADER) |
"before data" sync bytes + header of XA (green, mode2) frame
| #define CDIO_CD_XA_TAIL (CDIO_CD_EDC_SIZE+CDIO_CD_ECC_SIZE) |
"after data" part of raw XA (green, mode2 form1) frame
| #define CDIO_POSTGAP_SECTORS 150 |
| #define CDIO_PREGAP_SECTORS 150 |
| #define M2F2_SECTOR_SIZE 2324 |
| #define M2RAW_SECTOR_SIZE 2336 |
| #define M2SUB_SECTOR_SIZE 2332 |
| #define msf_t_SIZEOF 3 |
| typedef enum cdio_cd_minutes_sectors cdio_cd_minutes_sectors |
| typedef enum cdio_subchannel cdio_subchannel |
Information that can be obtained through a Read Subchannel command.
| enum cdio_cd_enums |
An enumeration for some of the CDIO_CD #defines below. This isn't really an enumeration one would really use in a program it is to be helpful in debuggers where wants just to refer to the CDIO_CD_ names and get something.
| enum cdio_subchannel |
| enum flag_t |
| enum m2_sector_enums |
| char* cdio_lba_to_msf_str | ( | lba_t | i_lba | ) |
Convert an LBA into a string representation of the MSF.
Convert an LSN into the corresponding LBA. CDIO_INVALID_LBA is returned if there is an error.
| lba_t cdio_mmssff_to_lba | ( | const char * | psz_mmssff | ) |
Convert a string of the form MM:SS:FF into the corresponding LBA. CDIO_INVALID_LBA is returned if there is an error.
| lba_t cdio_msf3_to_lba | ( | unsigned int | minutes, |
| unsigned int | seconds, | ||
| unsigned int | frames | ||
| ) |
Convert a MSF - broken out as 3 integer components into the corresponding LBA. CDIO_INVALID_LBA is returned if there is an error.
Convert a MSF into the corresponding LBA. CDIO_INVALID_LBA is returned if there is an error.
Convert a MSF into the corresponding LSN. CDIO_INVALID_LSN is returned if there is an error.
| char* cdio_msf_to_str | ( | const msf_t * | p_msf | ) |
Convert an MSF into a string representation of the MSF.
| const uint8_t CDIO_SECTOR_SYNC_HEADER[CDIO_CD_SYNC_SIZE] |
String of bytes used to identify the beginning of a Mode 1 or Mode 2 sector. {0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0};
1.8.13